Feeling worn down from cleaning up the leftovers from Discord's reign of chaos, the Mane 6 decide to take a short vacation to Manehatten. No sooner do they arrive, however, than they encounter an oversized ninja squirrel that leads them into an ambush set by Discord and a mysterious assistant. The girls awaken to find themselves fused into Multi-mental Occupancy pairs and forced to take part in a scavenger hunt in exchange for Discord reversing the process. The girls will have to work together like never before in order to succeed.